Radial Engineering Ltd.
4-Play™ User Guide
7
FEATURES
lifting the ground
The 4-Play is equipped with ground lift switches on each of the four out-
puts. Set all of the ground lift switches in the down or grounded position. As
you rotate through the outputs, if you notice any noise, try lifting the ground
as this can often help remove buzz and hum caused by ground loops.
connecting a tuner
The 4-Play is also equipped with a tuner output, along with a 3-position
tuner assign switch that allows you to choose when this output is active.
When the tuner assign is set to ALWAYS ON, the tuner will still be active
even when the mute switch is engaged. When set to ON W MUTE, the
tuner output will only be active when the mute switch is engaged, allowing
you to mute the instrument output to the PA when you want to tune up. The
OFF W MUTE setting will do the opposite, allowing the tuner to remain on
until the mute switch is engaged.
You can also use
the TUNER OUT
as an output to an
amp. Select OFF W
MUTE when switching
instruments.
